Ok, I've been struggling with this for three days and it's driving me insane.
My Mac Pro dustbin late 2013 with 64 gb of RAM is spluttering, choking, glitching, stopping, and generally not wanting to behave with only one software instrument playing. My template is very very light, only 12 tracks, I've removed the two reverb sends I was using and I"m not running any other plugins. I've got every instrument running as a separate kontakt/play/engine instance (not multis), I've got no tempo changes, my buffer is set to 512, process buffer range set to large, multithreading on playback and live (putting in to just playback doesn't make any difference), I've even got an audio track selected.
It can't get through a few bars without artefacts, stuttering, popping etc. If I'm recording it takes itself out of record after a few bars when it starts struggling.I've tried disconnecting my Apollo 8 and running it through the inbuilt sound of the computer to see if that was the problem, but no. I'm running the Sierra 10.12.5, the latest logic 10.3.1 and the latest Kontakt, Play etc.
Anyone have any clues? It tends to be my final core that pushes it all over the edge but as you can see from the attached pic they all go a bit mad and they don't even have to peak for the sound to start going crazy.
Any help or ideas appreciated.
Grant